把are these potatoes变为单数句

变为单数句These are eggs.变单数句 _________ __________ _________eggs. These are Chiese buses.变为单数形式 These're my pencils 变为单数句 把Those are their potatoes .改为单数型式 There are some potatoes on the table.(改为单数句) These are stamps.如何变为单数形式的句子 These are our desks and chairs.变为单数 将These are our shirts变为单数句子 They are some frogs.变为单数句 Are these bananas yellow 变为同义句Are these ----- ------ these toothbrushes are new.改单数句 Are these nice pictures 改为单数句